From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E7FDC433B4 for ; Wed, 14 Apr 2021 13:39:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75FA3613B3 for ; Wed, 14 Apr 2021 13:39:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351448AbhDNNkL (ORCPT ); Wed, 14 Apr 2021 09:40:11 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:16918 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351446AbhDNNkJ (ORCPT ); Wed, 14 Apr 2021 09:40:09 -0400 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4FL3SV0VWQzjZS5; Wed, 14 Apr 2021 21:37:46 +0800 (CST) Received: from huawei.com (10.175.127.227) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.498.0; Wed, 14 Apr 2021 21:39:27 +0800 From: Zhang Yi To: CC: , , , , , Subject: [RFC PATCH v2 3/7] jbd2: don't abort the journal when freeing buffers Date: Wed, 14 Apr 2021 21:47:33 +0800 Message-ID: <20210414134737.2366971-4-yi.zhang@huawei.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210414134737.2366971-1-yi.zhang@huawei.com> References: <20210414134737.2366971-1-yi.zhang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.127.227] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Now, we can make sure to abort the journal once the original buffer was failed to write back to disk, we can remove the journal abort logic in jbd2_journal_try_to_free_buffers() which was introduced in ("jbd2: abort journal if free a async write error metadata buffer"), because it may costs and propably not safe. Signed-off-by: Zhang Yi --- fs/jbd2/transaction.c | 17 ----------------- 1 file changed, 17 deletions(-) diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index 9396666b7314..3e0db4953fe4 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -2118,7 +2118,6 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal, struct page *page) { struct buffer_head *head; struct buffer_head *bh; - bool has_write_io_error = false; int ret = 0; J_ASSERT(PageLocked(page)); @@ -2143,26 +2142,10 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal, struct page *page) jbd2_journal_put_journal_head(jh); if (buffer_jbd(bh)) goto busy; - - /* - * If we free a metadata buffer which has been failed to - * write out, the jbd2 checkpoint procedure will not detect - * this failure and may lead to filesystem inconsistency - * after cleanup journal tail. - */ - if (buffer_write_io_error(bh)) { - pr_err("JBD2: Error while async write back metadata bh %llu.", - (unsigned long long)bh->b_blocknr); - has_write_io_error = true; - } } while ((bh = bh->b_this_page) != head); ret = try_to_free_buffers(page); - busy: - if (has_write_io_error) - jbd2_journal_abort(journal, -EIO); - return ret; } -- 2.25.4